Try to investigate the differences between the x86 and ARM processor families (or x86 and the Apple M1), and you'll see the acronyms CISC and RISC. It's a common way to frame the discussion, but ...

Analysis of ARM, X86, MIPS designs shows no difference Bernard Cole, Editor of the EE Times' Microcontroller and Printed Circuit Board Designlines EETimes (6/30/2015 06:07 PM EDT) A new study ...

Many of the differences between RISC-V, ARM, and x86 microprocessors are subtle and relate to how memory is addressed, branches are executed, exceptions are handled, and so on. This article will ...

That said, the lines between RISC and CISC are a little blurrier these days, with each borrowing ideas from one other and a wide range of CPU cores built on architecture variations.